13-12 Probes and Biopsy 
 
Follow local regulations when selecting and using the disinfectant. 
3.  Rinse the probe with plenty of sterile water (about 2 gallons) for at least 1 minute to 
remove all chemical residues on it. Or, follow the rinsing method recommended by the 
disinfectant manufacturer to rinse the probe. 
4.  Wipe off the water on the probe with sterile cloth or gauze after rinsing it. DO NOT dry 
the probe by heating. 
 
(For reference only) 
 
NOTE:
Repeated disinfection may degrade the performance and safety of the probe. 
  Sterilization 
For intra-operative probes (7LT4s), they have to be sterilized after completing each 
examination. 
1.  Wear sterile gloves to prevent infection. 
2.  Clean the probe before sterilizing it. MINDRAY recommends the following solutions to 
sterilize the probe. 
Hydrogen Peroxide and Peroxyacetic Acid -based sterilization solution 
Trade Name  Chemical Name  Procedures 
Minncare
® 
Cold 
Sterilant 
22% Hydrogen 
Peroxide 
4.5% Peroxyacetic 
Acid 
Dilute the sterilant with sterilized purified 
water (1:20). 
Immersed time: 11 hours.   
Temperature: 20℃-25℃. 
Please refer to the instructions provided by 
the manufacturer of the solution for details.
Before safety and performance is affected, probe 7LT4s can be sterilized by Minncare 
COLD STERILANT for at least 135 times (11 hours for one time). 
Glutaraldehyde-based sterilization solution   
Trade Name  Chemical Name  Procedures 
Cidex Activated 
Glutaraldehyde Solution 
2.2-2.7% 
Glutaraldehyde 
Soak the transducer into the activated 
solution for 10 hours (
20-25
℃) 
Please refer to the instructions 
provided by the manufacturer of the 
solution for details. 
Before safety and performance is affected, probe 7LT4s can be sterilized by Cidex 
Activated Glutaraldehyde Solution for at least 217 times (10 hours for one time).